A Proposal of New Recycling System of High-Water Content Mud by using Paper Debris and Polymer and Strength Property of Recycled Soils
A Proposal of New Recycling System of High-Water Content Mud by using Paper Debris and Polymer and Strength Property of Recycled Soils
复制标题
利用纸屑和聚合物新型高含水泥浆回收系统的建议及再生土的强度性能
DOI：
10.2473/shigentosozai.119.155
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
K. Kotani
中科院分区：
文献类型：
--
作者：
M. Mori;H. Takahashi;A. Ousaka;K. Horii;I. Kataoka;T. Ishii;K. Kotani
针对河湖底泥、建筑污泥等高含水率污泥，开发了一种利用废纸和聚合物的新型回收系统。本研究提出的新回收系统包括两个步骤。在第一步中，加入纸屑以控制泥浆的含水量，增强泥浆团之间的结合力。在第二步中，添加高分子材料以增加团簇中泥浆颗粒的结合力。利用该系统对含水率为200 ~ 500%的淤泥进行了20-30 min的搅拌改性，并对改性后的土进行了无侧限和三轴压缩试验。试验结果表明，与传统方法相比，新方法制备的再生土的破坏应变和残余强度都有较大幅度的提高。再生土的转化系数与普通土的转化系数相近。因此，可以得出结论，新系统产生的再生土比传统方法产生的再生土更适合作为填埋材料。
A new recycling system by using paper debris and polymer has been developed for high water-content mud such as bed materials in the river and lake, and construction sludge. The new recycling system proposed in this study consists of two steps. In the first step, the paper debris are added for controlling water content of mud and strengthening the bonding force between mud clusters. In the second step, polymer materials are added to increase the bonding force of mud particles in the cluster. By using this system, 200- 500% water-content mud has been modified to landfill materials by 20-30 minutes mixing process.The unconfined and triaxial compression tests were carried out to examine the strength of the recycled soils. It was confirmed through the tests that the failure strain and residual strength of the recycled soils produced by the new system are much larger than those of recycled soils produced by the conventional method. Furthermore, the transformation coefficient of the recycled soils is close to the one of the ordinary soils. Therefore, it can be concluded that the recycled soils produced by the new system are much more suitable for landfill materials than the recycled soils produced by the conventional method.